公开(公告)号：KR1020100092646A

公开(公告)日：2010-08-23

申请号：KR1020090011874

申请日：2009-02-13

Applicant: 성균관대학교산학협력단

Inventor： 이명수 ,  송정한 ,  윤석호

IPC: G01S13/08

Abstract: PURPOSE: A distance measuring method is provided to rapidly estimate a distance. CONSTITUTION: A PN sequence generator(101) generates a PN sequence. A circulator(102) generates a transmission signal by circulating the generated PN sequence. A transceiving antenna(107) receives a reflected signal after transmitting the generated transmission signal to an object. A matching filter(103) executes a correlation function process by using the received signal. A distance calculator(105) calculates the distance from a target object by counting the number of peaks from the correlation function process when the peak number is greater than a threshold value.

Abstract translation: 目的：提供距离测量方法以快速估计距离。 构成：PN序列发生器（101）产生PN序列。 循环器（102）通过循环生成的PN序列来生成发送信号。 收发天线（107）在将所生成的发送信号发送到对象之后接收反射信号。 匹配滤波器（103）通过使用接收信号执行相关函数处理。 距离计算器（105）通过从峰值数大于阈值时的相关函数处理中计数峰值数来计算与目标对象的距离。

公开(公告)号：KR1020100053956A

公开(公告)日：2010-05-24

申请号：KR1020080112851

申请日：2008-11-13

Applicant: 성균관대학교산학협력단

Inventor： 이영포 ,  김상훈 ,  이명수 ,  윤석호

IPC: G01S5/14

Abstract: PURPOSE: An apparatus and a method for eliminating the side peak of the autocorrelation function of composite binary offset carrier(CBOC) signal are provided to reduce the error of position measurement by precisely performing a synchronization process. CONSTITUTION: An autocorrelation function generator(11) generates an autocorrelation function by receiving CBOC signal from a CBOC signal generator(14). A correlation function divider(12) divides the autocorrelation function into individual correlation functions. A correlation function recombination unit(13) recombines the individual correlation functions in order to generate a side-peak eliminated correlation function.

Abstract translation: 目的：提供一种用于消除复合二进制偏移载波（CBOC）信号的自相关函数的侧峰值的装置和方法，以通过精确执行同步过程来减少位置测量的误差。 构成：自相关函数发生器（11）通过从CBOC信号发生器（14）接收CBOC信号来产生自相关函数。 相关函数分割器（12）将自相关函数分为单独的相关函数。 相关函数重组单元（13）重新组合各个相关函数，以便产生侧峰消除相关函数。

公开(公告)号：KR101144549B1

公开(公告)日：2012-05-11

申请号：KR1020100055390

申请日：2010-06-11

Applicant: 성균관대학교산학협력단

Inventor： 이영포 ,  이명수 ,  송정한 ,  강승구 ,  윤석호

IPC: G01S19/24 ,  G01S19/13

Abstract: 본 발명은 BOC 신호 동기화를 위한 단계 중 BOC 신호를 추적하는 과정에 관한 것이다. 본 발명에 따른 BOC 신호 추적 방법은 수신된 BOC 신호와 수신된 BOC 신호의 모든 기저 신호 간의 최초 상관함수가 생성되는 S1 단계, S1 단계에서 생성된 상관함수를 이용하여 주변 첨두가 제거된 최종 상관함수가 생성되는 S2 단계, S2 단계에서 주변 첨두가 제거된 상관함수가 판별기에 적용되는 S3 단계 및 S3 단계의 판별기를 이용하여 신호 추적이 수행되는 S4 단계를 포함한다.
본 발명에 따른 BOC 신호 추적 방법을 통해 신뢰성 있는 BOC 신호 동기화를 구현할 수 있으며, 차세대 위성 항법 시스템의 거리 측정 오차를 크게 낮춘다.

公开(公告)号：KR1020110121829A

公开(公告)日：2011-11-09

申请号：KR1020100041305

申请日：2010-05-03

Applicant: 성균관대학교산학협력단

Inventor： 이명수 ,  송정한 ,  이영윤 ,  윤석호 ,  송익호

IPC: H04B7/04

CPC classification number: H04L1/06 ,  H04B7/0413 ,  H04L1/0052

Abstract: PURPOSE: A decoding method and a device for multiple-input multiple-output signal using tree divisions are provided to inspect more available candidate first among the candidates. CONSTITUTION: A decoder divides configured tree into many stages by considering the really applied decoding techniques. The decoder divides a layer into each single layer. The decoder performs computational complexity evaluation.

Abstract translation: 目的：提供一种解码方法和使用树形分段的多输入多输出信号的装置，以便在候选中首先检查更多可用的候选者。 构成：解码器通过考虑真正应用的解码技术将配置的树分为多个阶段。 解码器将层划分为每个单层。 解码器执行计算复杂性评估。

公开(公告)号：KR1020100108072A

公开(公告)日：2010-10-06

申请号：KR1020090026539

申请日：2009-03-27

Applicant: 성균관대학교산학협력단

Inventor： 송정한 ,  정다해 ,  이영포 ,  이명수 ,  윤석호

IPC: H04L27/26 ,  H04J11/00 ,  H04B7/26

CPC classification number: H04L25/0224 ,  H04L27/2695 ,  H04W24/06

Abstract: PURPOSE: A method for estimating a fractional frequency offset using a pilot in a digital video broadcasting system is provided to efficiently estimate a frequency offset by comparing the performance of each frequency offset estimation method. CONSTITUTION: An OFDM symbol for a simulation is generated for estimating a frictional frequency offset. The generated OFDM symbol is transmitted in an AWGN environment and a multi-path rayleigh channel environment. The frictional frequency offset is set. The performance of the frictional frequency offset estimation is compared based on the frictional frequency offset estimation range according to each method and MSE(Mean Squared Error) for an SNR(Signal to Noise Ratio) to show the difference between the frictional frequency offset and the frictional frequency offset value.

Abstract translation: 目的：提供一种使用数字视频广播系统中的导频来估计分数频率偏移的方法，以通过比较每个频率偏移估计方法的性能来有效地估计频率偏移。 构成：用于模拟的OFDM符号被生成用于估计摩擦频率偏移。 所生成的OFDM符号在AWGN环境和多径Rayleigh信道环境中传输。 设定摩擦频率偏移。 基于每种方法的摩擦频率偏移估计范围和SNR（信噪比）的MSE（均方误差）来比较摩擦频率偏移估计的性能，以显示摩擦频率偏移和摩擦频率偏差之间的差异 频率偏移值。

公开(公告)号：KR1020100107795A

公开(公告)日：2010-10-06

申请号：KR1020090026061

申请日：2009-03-26

Applicant: 성균관대학교산학협력단

Inventor： 송정한 ,  이영윤 ,  윤태웅 ,  이명수 ,  윤석호

IPC: H04L27/26 ,  H04L29/02

CPC classification number: H04L27/266 ,  H04L27/2628

Abstract: PURPOSE: A method for analyzing an OFDM frequency offset estimation accuracy using a repeated training symbol is provided to select a proper method according to the situation of a system by analyzing the use results of three different methods. CONSTITUTION: An OFDM symbol is generated for a simulation to estimate a frequency offset. The generated OFDM symbol is transmitted from an AWGN(Additive White Gaussian Noise) environment or rayleight fading channel environment. A normalized frequency offset is set. The frequency offset estimation accuracy of each method through a mean square error is compared to select the optimum method. The OFDM symbol has a sample interval of 0.2 us, 1024 sub carriers, and 40 samples of a protection section.

Abstract translation: 目的：提供一种使用重复训练符号分析OFDM频偏估计精度的方法，通过分析三种不同方法的使用结果，根据系统情况选择适当的方法。 构成：为模拟产生OFDM符号以估计频率偏移。 生成的OFDM符号从AWGN（加性白高斯噪声）环境或光线衰落信道环境发送。 设定归一化频率偏移。 比较每个方法通过均方误差的频偏估计精度，选择最优方法。 OFDM符号具有0.2 us的采样间隔，1024个子载波，以及40个保护段的样本。